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Otter: Thanks; that's the same diagram that is on my radiator shroud, however it is much clearer and easier to read; I must have the incorrect vapor canister, as no place in any of the diagrams I have seen show any large vacuum hose coming from the bottom/underneath of the canister. I will call...

On my 1986 convertible, it's taken me weeks to straighten out all the things the previous owner decided to replace/repair incorrectly, i.e jury rigged. Anyway, I'm now onto the vapor canister, and thanks to a picture that Agent 86 posted, it looks like I have the vacuum routing correct. I have...

Not sure if the 1986 - 1989's are all the same; I have an '86 convertible and the right rear speaker is dead; looking for a used one; anyone have one for sale? Regards, Chris :)

Before I ask the question, here's what I've done so far. I have a FSM, and followed most of the procedures in the diagnostic section. I've replaced the modulator assembly with a known good unit, including the wiring harness, since that had some corrosion on the terminals where it connected to...

Vig: Thanks for the reply; that's what I kinda figured; all of the suspension components are in surprisingly in good shape; tech said only the slightest/tiny bit of movement in the left inner tie rod, but nothing that needed to be replaced right away; full tank of gas as per FSM, although I do...

It seems to be getting harder and harder to find a qualified shop that knows what they are doing in regards to performing a 4 wheel Corvette alignment, especially in my area. Anyway, I bought it to Steve Shannon Tires in my area, and they did a 4 wheel alignment; they were able to get the front...

I looked in there when I replaced mine, and it didn't look too bad; I am going to take off the dash pad, and see what I can find; there is a lot of air flow based on the noise of the fan, just gotta figure out why it's not making it to the middle dash vents.......

So far, I've corrected the minor vacuum leak on the plastic rotary piece that controls the A/C, Heat, Vent functions (it was hissing and wasn't sealed properly); then I replaced the blower motor with a new AC Delco unit (got a good deal from Amazon, $35 plus shipping); it definitely is blowing...

After about 92 phone calls, I finally found a place that actually had one; actually they had 3, and I bought one, so they still have 2 left if you happen to need one; even though it was used, it looks brand new, and I would rate the condition at a solid 9 on a scale of 1 to 10; see the link...

Oz: OK, thanks; 2 things just to clarify: 1. I should be able to connect a test light to power and then touch the Dark Green wire (Circuit 992 to ECM Pin 11), and the test light should NOT light, correct? This wire should not be showing a ground circuit, correct? 2. If I disconnect the...

My mechanic just recharged the A/C on my 1986 (C60 manual), and when he turns the A/C on, the fan will not come on as it should. It functions properly in regards to the coolant temperature, on at 225* and off at (not sure of exact temperature); he said he grounded the wire on one of the pressure...

Manual 4+3 transmission.........

At what position on the HVAC control panel should vacuum be applied to the water shut-off valve? I sprayed it with WD-40, and slightly loosened the 1/4" bolt where the linkage pivots, and tested it with my vacuum pump, and it moves very freely, although no matter what position the slide lever is...

Here are some pics; the slave cylinder is a brand new AC Delco unit, no rubber boot of any kind was included; should there be a rubber boot covering the rod and/or the opening that it goes into? If so, can someone snap a pic for me; also would need a part number and sourcing location, as the...

I am replacing the slave cylinder and hose (the clutch master cylinder has already been replaced) on my 1986 Convertible; question is - is there a boot that goes over the clutch fork push rod? I can crawl under and snap a pic and post it up if you need to see, however those familiar with the...

Bill: Thanks; so far, I can't see or smell any coolant anywhere on the intake manifold, however I will keep that in mind, and keep a close watch on it since I have heard that has been a common problem in the past as well..........

Hib/John - Thanks for the replies, that's what I figured, I just had hoped that the technology had improved over the past 20 years or so beyond just dumping sludge into the radiator and hoping for the best............ So far, no visible leaks on the ground, but will pressure test to be sure...

On my 1986 Convertible that I just purchased used, it seems like it may be using a little coolant. I have used the Bar's Head Gasket Repair/Stop Leak in the past, but don't really want to gunk up the cooling system, etc. on something that really won't do much good anyway. Has anyone had any...

Boom: That's what I kinda thought, but just wanted to double check; now it's time to find a used '87 wheel; will have to keep a lookout in the future for a nice set of '86 rims to make the car correct again...........

On my 1986 Convertible, it looks like the previous owner messed up a little; it has a set of 1987 rims with the charcoal center sections, however, it has (2) 9.5" rims on the rear, and (1) 8.5" rim on the driver's front, and (1) 9.5" rim on the passenger's side front; on my RPO sticker, it lists...